Spring wheel



May 12, 1925. 1,537,443

. N.MHERRERA SPRING WHEEL Filed arch G, 1922 Faterited May 12, 1925.

NICOLAS rrezrrnnnianii, or BUENO-s Arens, Assaiiifrinii.V`

SPRING WHEEL.

Application led'March 6, 1922.

To @ZZ whom t may concern.'

Be it known that Nroonis MARIANO Hna- Rnnii, residing `at Buenos Aires,Argentine Republic, has invented new and usetul )improvements in Springllheels, o1 which the 'following is a specification.

This invention relates to an improved-metallic resilient tire capable ofreplacing the pneumatic tires in use at" present, and adapted to allclasses of wheels. i

For a better understanding ot this inven tion, reference may be had tothe accompanying drawings, in which:

Fig. 1 is a front view ot' the elastic por-- tion.

Fig. 2 is an external front view of the cases or covers. Y

Fig. 3 is a section through the elastic portion shown in Fig. 1.

Fig. 4 is a section of the cases with the elastic portion.

' Fig. 5 is a section through the cases of Fig. 2.

Fig. 6 is a section through the external case shown inFig. 2, and

Fig. 7 is a section through the inner casing shown in Fig. 2. v

Lilie characters of reference indicate similar parts throughout thedrawings.

The tire of this invention consists oi two principal parts, which are,as shown in the drawings, the inner or elastic portion (Figs. 1 and 3),and the outer portion which protects and reinforces the elastic portion(Figs. 2 and 5) the rst na-med portion serving the purposes of thepneumatic tube, while the other serves as the usual cover employed atpresent.

.The elastic portion is constituted by a series of cylindricalconcentric metallic hoops a- (Figs. 1 and 3) spaced a distance b, fromeach other, and united to each other by means ot alternately positionedspacers c.

The number of hoops a, their thickness, and the number and dimensions ofspacers c, as also the size of spaces Z) (Figs. 1 and 3) are allvariable factors, since they are thc factors which give elasticity tothe tire, the desired elasticity varying, of course, with the load to besupported.

The hoops a (Figs. 1 and 3) may be ot steel or any other material ofgood elasticity. The alternate spacers c whichnnite the hoops maybe ofwood, leather, vulcanite, steel or other materials, and are secured tothe hoops by means of rivets or bolts 7c,

Serial No. 541,522.

autogenous soldering beingeinployed, if de- This elastic portion oic thetire is enclosed Y within two metallic cases or covers "which protectand reinforce it, assl'iown-in Figs. 2

and 5, the arrangement of elementsbein'g as described below. i

Said cover consistsof two cylindrical concentric metallic-cases,of'dierent heights, (Figs. 2 and 5) which are partially telescoped intoeach other, and which may have a certain amount of relative movement inthe direction of their telescopic fit.y

The outer case is open on the inner side (Figs. 2, 5 and 6), andreceives herein the inner case. The outer case is formed of two halfcases n, e (Figs. 4, 5 and 6), secured to each other by bolts f. Y

These bolts f, besides connecting the half cases n and e, pass throughopenings o, Fig. l, in the corresponding spacers when the elasticportion is placed in the case, whereby the elastic portion is heldagainst slip" ping on the case.

The half case e, on the part which contacts with the ground, has, ateach edge, a flange g, (`Figs.i4, 5 and 6), these Vflanges serving tohold a rubber band on the tire so as to avoid the noise produced by thetire on passing over the ground.

Of course, when the tire is used in the country, the rubber band andflange (I may be omitted.

The inner case is similar to the outer case, but is open on the outerside, (Figs. 2, 5

and 7 and is soclreted in the external case.

This case is also formed like the former, of two halt. cases y', (Figs.4, 5 and 7 connected to each other by means of bolts d. which passthrough lugs g, (Figs. 2, 4, 5 and 7). These bolts l and lugs g, besidesconnecting both inner half cases, serve the pur# pose of securingthe'tire to the bed of the wheel.

Within the aforesaid cases isenclosed the elastic portion of the tire(Fig.,4), and once this is accomplished thewheel is ready to be used andpresents the form shown in Fig. 2,

Since the elastic portion is of variable dimensions, it will be evidentthat the cases or cover which protect it will also be'of variabledimensions.

The operation is similar to that of pneu matic tires, since wheninmotion, When it Vmeets an obstacle the elastic portion gives assumetheir original position.

The maximum deformation of the tire depends on the thickness of spacersc and the number` ot' hoops a (Figs. 1, 3 and 4), and these elementsWill be chosen according to theutype of Vehicle to which the tireis'applied.V o

Y Itis evident the Various changes in construction and details may bemade Without departing from the scope of the invention, the essentialcharacteristics ot' which are yclearly set forth in the appended claim.

VHaving thus fully described and ascer erent heights, keach being formedby two i.'

right angled members connected together by bolts, a series ofcylindrical concentric equidistant hoops "connected to each other bymeans of alternately placed .spacers and bolts contained in thetelescoping cases, theY cylindrical hoops being connected -to thecasings by means of certain o'said first mentioned bolts passing throughcertain oi' said spacers.

In testimony whereof-he atlixes his signature in presence of twoWitnesses.

.Y NICOLAS M. HERRERA.

Witnesses M. MATHER,

BETRES Zso.

